'Once Upon a Time' Season 2 finale: Colin O'Donoghue teases the Captain Hook-Rumpelstiltskin showdown
"Fans can certainly expect to see some interesting interactions with Rumpelstiltskin, " says O'Donoghue. "It's such a complicated relationship ... fans will have to watch the finale to see."
Obviously, he cannot give away too much. But one thing O'Donoghue can talk about is Hook perhaps breaking away from Greg and Tamara -- as we can see in this preview video.
"Hook, at this point, he's in it for himself," says O'Donoghue. "If [Greg and Tamara] cease to be of any use to him, then he would just as happily turn his back on them."
"I think what's interesting about the finale is you get a deeper layer to Hook. He didn't want to hang out to see Regina be tortured. I don't think he takes any kind of pleasure or joy in seeing anything like that," O'Donoghue adds.
One thing we were disappointed to not see (so far) was Hook interacting with grown-up Bae, since we know he met Bae on his ship so many years ago. But O'Donoghue says we'll have to wait and see.
"Who knows what happened when Neal fell through the portal?" teases the actor.
"For me, I'm always intrigued to see Hook with everyone because he has his own agenda. He's not really tied to anyone at all. That's the one thing that I really like about the character -- he can react and get on with all people."
The "Once Upon a Time" Season 2 finale airs Sunday, May 12 at 8 p.m. ET/PT on ABC.